Two-loop neutrino masses with large R-parity violating interactions in supersymmetry
Abstract
We attempt to reconcile large trilinear R-parity violating interactions in a supersymmetric (SUSY) theory with the observed pattern of neutrino masses and mixing. We show that, with a restricted number of such interaction terms with the -type couplings in the range (0.1-1.0), it is possible to forbid one-loop contributions to the neutrino mass matrix. This is illustrated with the help of a `working example' where an econnomic choice of SUSY parameters is made, with three non-vanishing and `large' R-parity violating terms in the superpotential. The two-loop contributions in such a case can not only generate the masses in the requisite order but can also lead us to specific allowed regions of the parameter space.
Keywords
Cite
@article{arxiv.0808.1523,
title = {Two-loop neutrino masses with large R-parity violating interactions in supersymmetry},
author = {Paramita Dey and Anirban Kundu and Biswarup Mukhopadhyaya and Soumitra Nandi},
journal= {arXiv preprint arXiv:0808.1523},
year = {2009}
}
Comments
Revised version, 25 pages, 16 figures